Year	Month	Nb_of_distinct_IPs	Nb_of_downloads
2011	Jan	25	38
2011	Feb	20	30
2011	Mar	21	35
2011	Apr	29	33
2011	May	13	16
2011	Jun	30	36
2011	Jul	31	33
2011	Aug	26	31
2011	Sep	21	27
2011	Oct	22	36
2011	Nov	37	44
2011	Dec	25	50
2011	all	263	409